Abstract:
This paper estimates anode surface temperature at the current interruption limit by measuring the melting time of a contact material after current interruption and simula...Show MoreMetadata
Abstract:
This paper estimates anode surface temperature at the current interruption limit by measuring the melting time of a contact material after current interruption and simulating the anode surface temperature. As a result, the minimum anode surface temperature of CuCr(50/50) contact material was about 1750 K. We also calculated the metal vapor density between electrodes with a simplified model. The calculation results showed that the critical vapor density was about 3/spl times/10/sup 20/ atoms/m/sup 3/. This vapor density is equivalent to the averaged pressure of 8 Pa, which is close to the value of the Paschen minimum.
Published in: IEEE Transactions on Plasma Science ( Volume: 25, Issue: 4, August 1997)
DOI: 10.1109/27.640677
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Surface Temperature ,
- Current Gaps ,
- Anode Surface ,
- Critical Density ,
- Contact Materials ,
- Metal Vapor ,
- Vapor Density ,
- Melting Time ,
- Simulation Results ,
- CCD Camera ,
- Specific Strength ,
- Critical Temperature ,
- Electrical Engineering ,
- Liquid Droplets ,
- Critical Pressure ,
- Surface Melt ,
- Axial Magnetic Field ,
- Mechanical Shutter ,
- Voltage Recovery
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Surface Temperature ,
- Current Gaps ,
- Anode Surface ,
- Critical Density ,
- Contact Materials ,
- Metal Vapor ,
- Vapor Density ,
- Melting Time ,
- Simulation Results ,
- CCD Camera ,
- Specific Strength ,
- Critical Temperature ,
- Electrical Engineering ,
- Liquid Droplets ,
- Critical Pressure ,
- Surface Melt ,
- Axial Magnetic Field ,
- Mechanical Shutter ,
- Voltage Recovery
